feat: benchmarking harness with shared fixtures for tests and benchmarks

[Copilot]

Establishes a shared fixture design so test data is defined once and reused by both unit tests and benchmarks. Each function now has three coordinated files: a fixture, a test (updated to import from it), and a bench.

Structure per function

sort-by.fixture.ts  ← exports representative data
sort-by.test.ts     ← imports from fixture (was inline)
sort-by.bench.ts    ← Deno.bench using same fixture

sort-by.fixture.ts

export const sortByFixture = [
  { id: 1, value: 10 },
  { id: 2, value: 5 },
  { id: 3, value: 20 },
]

sort-by.bench.ts

import { sortBy } from './sort-by.ts'
import { sortByFixture } from './sort-by.fixture.ts'

Deno.bench('sortBy', () => {
  sortBy(sortByFixture, 'value')
})

Scope

• 82 fixture files and 82 bench files created across array, date, function, math, object, text
• 24 test files updated to import representative data from fixtures; edge-case data stays inline
• Root deno.json: added bench task (deno bench [!_]*/**/*.bench.ts)

Tooling fixes

• docs:lint task updated to exclude *.fixture.ts and *.bench.ts from JSDoc lint (fixture exports are data, not public API)
• _internal-tools/check-exports.ts updated to skip fixture/bench files when updating barrel mod.ts and deno.json exports

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.deno.land
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
  • Triggering command: /usr/bin/curl curl -s REDACTED bash k/ut�� in-by.fixture.ts (dns block)
  • Triggering command: /usr/bin/curl curl -s REDACTED bash --no�� ange.fixture.ts (dns block)
• jsr.io
  • Triggering command: /tmp/deno-bin/deno /tmp/deno-bin/deno test --doc --reporter=dot --coverage --parallel _internal-tools/check-exports.ts _internal-tools/check-imports.ts _internal-tools/check-links.ts _internal-tools/check-versions.ts _internal-tools/count-functions.ts _internal-tools/deno-config.ts array/collection-key-by.test.ts array/collection-key-by.ts array/common-elements.test.ts array/common-elements.ts array/count-by.test.ts array/count-by.ts array/filter-by-date.test.ts array/filter-by-date.ts (dns block)
  • Triggering command: ./deno ./deno test math/ --reporter=dot /hom�� elect-by.test.ts (dns block)
  • Triggering command: ./deno ./deno test math/ --reporter=dot --no-check et-difference.bench.ts (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
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Original prompt

Please plan and implement this new design

[Chronological Review: The conversation began with the user expressing the need to set up a benchmarking harness for a library using Deno, seeking to utilize Deno's built-in features like Deno.bench and other utilities from the Deno ecosystem. The user then shifted focus to persisting and displaying benchmarking information, indicating a preference for leveraging existing packages rather than building from scratch. The user proposed having representative data fixtures for tests and benchmarks, suggesting a design where each function would have a specific fixture file. The user requested to implement this new design, leading to the current state of the conversation.]

[Intent Mapping:

1. "I wanted to set up a benchmarking harness." - User's initial request for benchmarking solutions.
2. "What about persisting this information (and versioning it)?" - Inquiry about data persistence and display.
3. "It would be nice to have the same fixture... for the tests and the benchmarks." - Suggestion for a design improvement.
4. "do it" - Direct command to implement the proposed design.
5. "Please plan and implement this new design." - Request for a structured implementation plan.]

[Technical Inventory:

• Deno: The user is utilizing Deno for their library, focusing on its built-in benchmarking capabilities.
• Deno.bench: Identified as the most appropriate tool for benchmarking.
• Fixtures: The concept of using representative data for tests and benchmarks was introduced.]

[Code Archaeology:

• File: /Users/edouard/Documents/code/me/utils/benchmarks/utils.ts - This file is central to the user's benchmarking efforts and is where the proposed changes will be implemented.]

[Progress Assessment:

• Completed: Initial discussions on benchmarking and persistence.
• Pending: Implementation of the new design involving fixtures for tests and benchmarks.]

[Context Validation: The conversation has established a clear direction for implementing a benchmarking harness using Deno, with a focus on leveraging existing tools and creating a structured approach to data handling.]

[Recent Commands Analysis:

• Last Agent Commands: The user requested to "do it" and then "Please plan and implement this new design."
• Tool Results Summary: No specific tool results were returned as the conversation focused on planning and design rather than executing code.
• Pre-Summary State: The agent was preparing to implement a new design for benchmarking and testing fixtures when the token budget was exceeded.
• Operation Context: The commands were executed in the context of finalizing the design for benchmarking and establishing a clear structure for tests and benchmarks.]

1. Conversation Overview: - Primary Objectives: - "I wanted to set up a benchmarking harness." - "What about persisting this information (and versioning it)?" - "It would be nice to have the same fixture... for the tests and the benchmarks." - "do it" - "Please plan and implement this new design." - Session Context: The user is developing a benchmarking harness for a library in Deno, focusing on utilizing built-in features and existing packages for persistence and display. - User Intent Evolution: The user transitioned from seeking benchmarking solutions to proposing a structured design for tests and benchmarks, culminating in a request for implementation.

2. Technical Foundation:

• Deno: The user is using Deno for their library, emphasizing its ecosystem for benchmarking.
• Deno.bench: Identified as the primary tool for benchmarking tasks.
• Fixtures: The user proposed using representative data fixtures for both tests and benchmarks.

3. Codebase Status:

• File Name: utils.ts
• Purpose: Central to the user's benchmarking efforts.
• Current State: Awaiting implementation of the new design involving fixtures.
• Key Code Segments: Not specified yet, as the implementation is pending.
• Dependencies: Relates to the overall benchmarking and testing framework being developed.

4. Problem Resolution:

• Issues Encountered: None explicitly mentioned; focus has been on design and planning.
• Solutions Implemented: No solutions have been implemented yet; the conversation is in the planning phase.
• Debugging Context: No ongoing troubleshooting efforts mentioned.
• Lessons Learned: The importance of structured data handling for benchmarking and testing.

5. Progress Tracking:

• Completed Tasks: Initial discussions on benchmarking and persistence.
• Partially Complete Work: Implementation of the new design for fixtures is pending.
• Validated Outcomes: None yet, as implementation has not begun.

6. Active Work State:

• Current Focus: Planning and implementing a new design for benchmarking and testing fixtures.
• Recent Context: The user requested to implement the proposed design for fixtures.
• Working Code: No specific code snippets discussed recently; focus is on design.
• Immediate Context: The user ...

Created from VS Code.

[codacy-production]

Not up to standards ⛔

🔴 Issues 11 medium

Alerts:
⚠ 11 issues (≤ 2 issues of at least medium severity)

Results:
11 new issues

Category	Results
Compatibility	9 medium
UnusedCode	2 medium

View in Codacy

🟢 Metrics 4 complexity · -10 duplication

Metric	Results
Complexity	4
Duplication	-10

View in Codacy

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